9G4P

Crystal structure of the skipping-rope RNA motif.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	RNA (33-MER)	polymer	35	11431.7	1		bacterium
2	B (B)	RNA (33-MER)	polymer	33	10601.3	1		bacterium
3	C, D, E, F (A, B)	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	22033.1
Non-Polymers*	Number of molecules	4
	Total formula weight	97.2
All*	Total formula weight	22130.3

*Water molecules are not included.